Do you have a question about the HYDRO-RAIN HRC–300 Series and is the answer not in the manual?
Features three independent programming functions for flexible watering across landscapes.
Explains Program C for low-flow stations and the stacking feature for cycle logic.
Highlights wall-mounting ease and remote control capabilities via RF transmitter.
Covers permanent programming storage and the user-friendly touch-screen display.
Details language options, water budgeting, and the optional rain sensor.
Guides on setting the display language and current time/date configuration.
Explains resetting to defaults and synchronizing wireless sensors.
Covers switching between programs and setting watering start times.
Details setting watering days and durations for each station.
Explains setting watering cycles and performing manual watering operations.
Guides on water budgeting and managing wireless sensor status.
Describes locking the screen and using the Rain Delay feature.
Steps for selecting a location and mounting the docking port.
Instructions for connecting the power transformer and electrical valve wires.
Details connecting pump/master valve wires and mounting the remote sleeve.
Explains the diagnostic system for detecting faulty solenoids or wiring.
Guides on correcting faults and understanding the auto-resetting circuit breaker.
Provides definitions for essential terms related to the sprinkler controller.
Addresses common symptoms like stations not turning on or stuck on.
Includes help contacts, FCC listings, warranty, and child safety notes.
| Connectivity | Wi-Fi |
|---|---|
| Mobile App | Yes |
| Start Times per Program | 4 |
| Operating Voltage | 24 VAC |
| Manual Watering | Yes |
| Backup Memory | Yes |
| Number of Zones/Stations | 12 |
| Watering Days | Customizable |
| Rain Delay | Yes |
| Enclosure Rating | Indoor/Outdoor |
| Mounting | Wall-mount |












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